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oai:www.ideals.illinois.edu:2142/24446 2023-07-10 col_2142_5131 col_2142_14770 com_2142_5130 com_2142_3518 com_2142_234

2011-05-25T14:22:17Z Duarte, C. Armando Gupta, Piyush 2011-05-25T14:22:17Z 2013-05-26T10:00:16Z 2011-05-25T14:22:17Z 2011-05 This report shows that the so-called generalized finite element method with global-local enrichment functions (GFEM g-l ) can be implemented non-intrusively in existing closed-source FEM software as an add-on module. The GFEM g-l is based on the solution of interdependent global (structural) and local (crack) scale problems. In the approach presented here, an initial global scale problem is solved by a commercial finite element analysis software like Abaqus, local problems containing 3-D fractures are solved by an hp-adaptive GFEM software and an enriched global scale problem is solved by a combination of the FEM and GFEM solvers. The interactions between the solvers are limited to the exchange of load and solution vectors and does not require the introduction of user subroutines to existing FEM software. As a results, the user can benefit from built-in features of available commercial grade FEM software while adding the benefits of the GFEM for this class of problems. Several three-dimensional fracture mechanics problems aimed at investigating the applicability and accuracy of the proposed two-solver methodology are presented. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-04-27T18:14:19Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Gupta_Piyush.tex: 114946 bytes, checksum: db1acd2ca87ed31b5d44dde38d1b1143 (MD5) Gupta_Piyush.pdf: 2838769 bytes, checksum: 49fe18631f08125576c2bac2335e2fbc (MD5) Made available in DSpace on 2011-05-25T14:22:17Z (GMT). No. of bitstreams: 3 Gupta_Piyush.pdf: 2838574 bytes, checksum: 61ea7009795bdaba39170c8eb6d4ef2f (MD5) license.txt: 4061 bytes, checksum: e5ac69c0b5d57e2791d79b1d8506f170 (MD5) Gupta_Piyush.tex: 114946 bytes, checksum: db1acd2ca87ed31b5d44dde38d1b1143 (MD5) Item marked as restricted to the 'Administrator' Group (id=1) by William Ingram (wingram2@illinois.edu) on 2011-05-25T14:29:39Z Item is restricted until 2013-05-25T14:29:35Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2013-05-26T10:00:16Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Civil and Environmental Engineering (ID: 672) No. of bitstreams: 4 Gupta_Piyush.pdf: 2838574 bytes, checksum: 61ea7009795bdaba39170c8eb6d4ef2f (MD5) license.txt: 4061 bytes, checksum: e5ac69c0b5d57e2791d79b1d8506f170 (MD5) Gupta_Piyush.tex: 114946 bytes, checksum: db1acd2ca87ed31b5d44dde38d1b1143 (MD5) Gupta_Piyush.pdf.txt: 87268 bytes, checksum: 5b9f866a84503919d2d4a16444bb236b (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2013-05-26T10:00:16Z http://hdl.handle.net/2142/24446 en Copyright 2011 by Piyush Gupta. All rights reserved. Generalized Finite Element Method (GFEM) Fracture mechanics Global-Local analysis multi-scale problem Shur complement. Analysis of Three-Dimensional Fracture Mechanics Problems: A Non-Intrusive Approach Using ABAQUS and a Generalized Finite Element Method Civil & Environmental Eng 1251 Civil Engineering 0106 University of Illinois at Urbana-Champaign Thesis M.S. MS:Civil Engineering -UIUC 10KS0106MS